PPE Stainless Steel Down Pipe for 2011-2015 Silverado/Sierra 2500HD/3500HD Duramax - 117000600

Key Features & Specs:

• High-flow stainless steel down pipe for 6.6L Duramax LML
• Constructed from durable 304 stainless steel
• OEM reference part number: GM 12643610
• Reduces exhaust gas temperatures (EGTs)
• Improves turbo efficiency and throttle response
• TIG-welded flanges for strong, leak-free connections
• Smooth, free-flowing design for increased exhaust performance
• Includes woven titanium heat sleeve for heat management
• Retains factory sensor/injection ports (2x M20-1.5 and 1x M14-1.5)
• Compatible with factory or PPE up-pipes

Important Notes:

• Only compatible with 2011-2015 LML trucks using a clamp-style connection to the exhaust pipe

Fitment:

• 2011-2015 Chevrolet Silverado 2500HD / 3500HD 6.6L Duramax
• 2011-2015 GMC Sierra 2500HD / 3500HD 6.6L Duramax
• 2014 GMC Savana 2500 6.6L Duramax

Upgrade your exhaust system with the Pacific Performance Engineering (PPE) Stainless Steel Down Pipe, designed for 2011-2015 GM 6.6L Duramax LML trucks. Built from high-quality 304 stainless steel, this down pipe improves exhaust flow, reduces exhaust gas temperatures, and enhances turbo efficiency and response. Featuring smooth transitions and TIG-welded flanges, it ensures leak-free performance and long-term durability. A woven titanium heat sleeve helps manage heat, while factory sensor and injection ports are retained for seamless integration. Compatible with factory or PPE up-pipes, this is a direct-fit performance upgrade for your Duramax.